Home/Species/ Sticky Bog-asphodel

Triantha glutinosa

(Michx.) Baker

Sticky Bog-asphodel

G5Secure Found in 3 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.147820

Element CodePMLIL1Y035

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderAlismatales

FamilyTofieldiaceae

GenusTriantha

Synonyms

Tofieldia glutinosa(Michx.) Pers.Tofieldia glutinosa ssp. glutinosaTriantha glutinosa ssp. glutinosa

Other Common Names

sticky tofieldia (EN) Tofieldie glutineuse (FR)

Concept Reference

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Conservation Status

Rank Method Rank calculation - Biotics v2

Review Date2025-06-12

Change Date2010-11-04

Edition Date2025-06-12

Edition AuthorsN. Ventrella (2025)

Threat ImpactUnknown

Range Extent>2,500,000 square km (greater than 1,000,000 square miles)

Number of Occurrences> 300

Rank Reasons

Triantha glutinosa is a perennial herb occurring on calcareous soils in bogs, seeps, marshes, wet meadows, and river shores of North America, from Alaska east through Newfoundland and Labrador, south to North Carolina and Tennessee, north to North Dakota, and disjunct in Oregon and Idaho in the United States and Canada. There are over 1,000 estimated occurrences of this species, which are threatened by land-use conversion, habitat fragmentation, forest management practices, invasive species, herbicide drift, development, succession, recreation, alteration of hydrology, livestock impacts, erosion, flooding, and other threats in some places. Little is known about trends, but with a large range extent, high number of occurrences, and no obvious intrinsic vulnerabilities, Triantha glutinosa is considered secure.

Range Extent Comments

Triantha glutinosa occurs in North America, from Alaska east through Newfoundland and Labrador, south to North Carolina and Tennessee, north to North Dakota, and disjunct in Oregon and Idaho in the United States and Canada (FNA 2002, CPNWH 2025). The range extent was estimated to be over 14 million square kilometers using herbarium specimens, photo-based observations, and NatureServe Network occurrence data collected between 1994 and 2025 (GBIF 2025, iNaturalist 2025, NatureServe 2025, RARECAT 2025, SEINet 2025).

Occurrences Comments

By applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1994 and 2025, it is estimated that there are more than 1,000 occurrences rangewide (GBIF 2025, iNaturalist 2025, NatureServe 2025, RARECAT 2025, SEINet 2025).

Threat Impact Comments

Triantha glutinosa is highly threatened by land-use conversion, habitat fragmentation, and forest management practices; it is also vulnerable to sedimentation (Southern Appalachian Species Viability Project 2002). Additional threats include invasive species, herbicide drift, development, succession, recreation, alteration of hydrology, livestock impacts, erosion, flooding, and other threats in some places (NatureServe 2025). There is insufficient data, including anecdotal accounts, to understand scope and severity of threats for this taxon.

Ecology & Habitat

Habitat

Triantha glutinosa occurs in bogs, seeps, "marshes, wet meadows, [on] calcareous soil" from 0-2100 m in elevation (FNA 2002). In New England, it also occurs on river shore seeps, fens, and in regions of high pH bedrock or till (Native Plant Trust 2025, Weakley and the Southeastern Flora Team 2025).

Palustrine Habitats

HERBACEOUS WETLANDFORESTED WETLANDBog/fenRiparian

Other Nations (2)

CanadaN5

Province	Rank	Native
Ontario	S4	Yes
Island of Newfoundland	S5	Yes
Saskatchewan	S4	Yes
Labrador	S3	Yes
Manitoba	S4	Yes
Nunavut	S2	Yes
Northwest Territories	S4	Yes
Alberta	S5	Yes
Nova Scotia	S1	Yes
British Columbia	S5	Yes
Quebec	S4	Yes
Yukon Territory	S3	Yes
New Brunswick	S3	Yes

United StatesN5

Province	Rank	Native
New York	S1	Yes
Virginia	S1	Yes
Maine	S3	Yes
New Hampshire	S1	Yes
Illinois	S2	Yes
Indiana	S2	Yes
Wisconsin	S2	Yes
Vermont	S1	Yes
Georgia	SH	Yes
Michigan	SNR	Yes
West Virginia	S1	Yes
Tennessee	S1	Yes
North Carolina	S1	Yes
North Dakota	S1	Yes
Oregon	SNA	No
Minnesota	S4	Yes
Ohio	S2	Yes
Connecticut	SNR	Yes
Idaho	SNR	Yes

Threat Assessments

Threat	Scope	Severity	Timing
Unknown/undetermined	—	—	—

Plant Characteristics

DurationPERENNIAL

Economic Value (Genus)No

Roadless Areas (3)

Alaska (1)

Area	Forest	Acres
Eudora	Tongass National Forest	195,022

North Carolina (2)

Area	Forest	Acres
Middle Prong Addition	Pisgah National Forest	1,852
Sam Knob (addition)	Pisgah National Forest	2,576

References (11)

Consortium of Pacific Northwest Herbaria (CPNWH). 2025. Online database of vascular plant specimens from the Pacific Northwest. Online. Available: http://www.pnwherbaria.org/index.php (accessed 2025).
Flora of North America Editorial Committee (FNA). 2002a. Flora of North America north of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.
Global Biodiversity Information Facility (GBIF). 2025. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2025).
iNaturalist. 2025. Online. Available: https://www.inaturalist.org (accessed 2025).
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
Native Plant Trust. 2025. Go Botany website. Online. Available: https://gobotany.nativeplanttrust.org (accessed 2025).
NatureServe. 2025. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
<p>NatureServe's Rapid Analysis of Rarity and Endangerment Conservation Assessment Tool (RARECAT). 2025. Version: 2.1.1 (released April 04, 2025).</p>
Southern Appalachian Species Viability Project. 2002. A partnership between the U.S. Forest Service-Region 8, Natural Heritage Programs in the Southeast, NatureServe, and independent scientists to develop and review data on 1300+ regionally and locally rare species in the Southern Appalachian and Alabama region. Database (Access 97) provided to the U.S. Forest Service by NatureServe, Durham, North Carolina.
Southwest Environmental Information Network (SEINet). 2025. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2025).

Triantha glutinosa

Habitat

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